1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
makkiz [27]
3 years ago
8

mary has 39 square feet of patio bricks. each square brick has sides 1 foot long. what is the greatest perimeter of a rectangle

that she can make with bricks
Mathematics
1 answer:
bearhunter [10]3 years ago
7 0

-- The smallest perimeter you can make with a certain area
is a circle.

-- The NEXT smallest perimeter with the same area is a square.

   With 1-ft by 1-ft square bricks, the shortest perimeter she could
make would be by using her bricks to make it as square as possible. 
Without cutting bricks into pieces, the best she could do would be  

                           (13 bricks) x (3 bricks) .

                            =    (13-ft) x (3-ft)

           Perimeter = (2 x length) + (2 x width)

                             = (2 x 13-ft)  +  (2 x 3-ft) 
                           
                             =      (26-ft)  +  (6-ft)  =  32 feet  <== shortest perimeter.

-- Then, the more UNSQUARE you make it, the more perimeter
it takes to enclose the same area.  That means Mary has to make
a rectangle as long and skinny as she can.

The longest perimeter she can make (without cutting bricks into
pieces) is    (39 bricks) x (1 brick) .

                        = (39-ft)  x  (1-ft) .

    Perimeter  =  (2 x length) + (2 x width)

                       =   (2 x 39-ft)  +  (2 x 1-ft)

                       =        (78-ft)  +  (2-ft)     =     80 feet .    

What she'll have then is a brick path, 39 feet long and 1 foot wide,
and when you walk on it, you'll need to try hard to avoid falling off
because it's only 1 foot wide.  

You might be interested in
The point A(-7, 3) is reflected over the point (-4, 5) and its image is point B.
Rudiy27

(7, 3) is the answer I believe

3 0
2 years ago
#6, #7, and #10 please:)
scoundrel [369]
All given xd ur welcome so ez
3 0
3 years ago
Robin donated bags of grain that each weighed 403 pounds to the local food shelf. If the total weight of the grain was 160 pound
Alexxx [7]
Well.. 160 x 3 = 480. So he would've had to give only 2 bags. But he would've given a fraction of a bag, but if you're only talking whole numbers, then the answer is 2. If you're talking fractions, then the answer is 2.51875.
7 0
3 years ago
Read 2 more answers
Help me with this question
Daniel [21]

Answer: A) 23,00

Step-by-step explanation:

A=23,00

B=8,600

C=12,00

D=3,600

3 0
2 years ago
Read 2 more answers
Jack is a professional weightlifter. his personal lifting record was 125.8kg. at a weightlifting competition, he broke his own r
Softa [21]

Answer:

126.34kg

Step-by-step explanation:

125.8+0.54=126.34kg

Convert 540 grams to kilograms` 0.54 kilograms, and add to the previous record

5 0
3 years ago
Other questions:
  • In triangle ABC, m∠ABC = (4x – 12)° and m∠ACB = (2x + 26)°. Yin says that if x = 19, the triangle must be equilateral. Is he cor
    10·2 answers
  • the width of a rectangle is three more than half the length. its perimeter is 78 centimeters, find the length and width
    12·1 answer
  • Billy has $3.00. Bubble gum costs $.30. He bought four pieces.
    5·2 answers
  • A transformation named T maps XYZ to X'Y'Z'. The transformation shown is a reflection translation dilation
    14·1 answer
  • Farenheit and centigrade temperatures are related
    9·1 answer
  • An object that weighs 24 pounds on Mercury weighs approximately 80 pounds on Earth. A rock weighs 240 pounds on Mercury. What is
    11·1 answer
  • If m&lt;1=25 what is the measure of an angle that is complementary to &lt;1
    15·1 answer
  • Write 1 ordered pair excluding the y-intercept given the slope and y-int. of this line.
    8·1 answer
  • A grocery store has bananas on sale for 2 pounds for $1.50. What is the cost of 6 pounds of bananas?
    9·2 answers
  • Find the area of the triangle. MY GRADE PLEASE HELP!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!